My 2 year old daughter does not want to eat food but she eats chips and drinks milk?

Your choice : At 2 this is a power game as she got used to being treated as a queen at birth but you now expect her to be a kid. I would have her sit with the family when they eat & always prepare foods she might like. No special meals. Limit milk to 16 oz/d plus all the water she wants. No fights or demands. When she decides she is hungry she will eat. If not this can last for years.